it is best practice to replace the run capacitor whenever installing a new PSC blower motor to ensure the start and run windings receive the correct microfarad (MFD) rating for peak efficiency

5 Degree Differential

You must match the horsepower (HP) and RPM ratings of the original equipment

An OEM wheel like the WHL2343 ensures the center of mass is perfectly aligned with the shaft

Lennox 35K53 Blower Housing 321894-706 it is best practice toThe Lennox 35K53 Blower Housing is a critical OEM component designed for high static pressure applications in residential and light commercial Lennox furnace and air handler assemblies. Engineering grade durable polyolefin construction ensures this 10" x 8" blower housing resists corrosion and maintains structural integrity under extreme thermal cycling. As a direct fit replacement blower housing, it is optimized for the Lennox X50 03 blower and